Door-operating device.



W. W. GORE. DOOR. OPERATING DBVIGE. APPLIGATI ON FILED JAN. 5, 1912.

manne June 2, 1914,

WITNESSES f \NVENTOR /%M ATTORNEY VV.VV.COREQ DOOR OPERATING DEVICE. APPLICATION FILED JAN.5191&

Patented June 2, 1914,

6 SHEETSSHEET 2.

Lws sm \NVENTOB ATTORNEY W. W. CORE. YD'OOR OPERATING DEVICE. APPLICATION FILED JAN. 5, 1912.

Patented June 2,1914.

QflHEETS-SHEET 3.

v a A 3% 8? a Y W m\ ATTORNEY I W. GORE. DOOR OPERATING DEVICE.

APPLIGATION FILED JAN.5, 1912.

Patented June 2, 1914.

-6 SHEETS-SHEET 4.

'LOQBASQ my I ATTORNEY 'W..W. GORE.

DOOR OPERATING DEVICE.

APPLICATION FILED JAN. 5, 1912.

Pamtea we 2,1914.

S W. W. GORE.

I DOOR OPERATING DEVICE.

APPLIUATION FILED JAN-[5, 1912.

Paten'tedl June 2 1914.

' 6 SHEETS-SHEET a.

ATTORNEY to the wall oi? the shed WILLIAM WALLACE CORE, OF NEWARK, APPLIANCE COMPANY, OENEW YORK,

NEW annsnv, nssionon are THE PATENT N. Y., A conronn'rron on NEW YonK.

DOOR-OPERATING DEVICE.

incense,

Specification of Letters Patent.

Patented June 2, 1914.

Application filed January 5, 1912. Serial No. 669,662.

To all whom it may concern: Be it known that l, VVIL JAM WALLACE Gone, a citizen of the United States of America, ahda resident of Newark, county of Essex, andeState ofNew' Jersey, have invented certainl iewl and -useful Improve: ments'in Door-Operating Devices, of WillCll the following is a specification; reference being had to the accompanying drawlngs, forming a part thereoiif a This invention relates to an improvement in devices for operating dooraand part cle'- larly for operating such largeh'eavy' doors as. are commonly employed n pier-sheds, 15

factories and the like. H 1 vThe 'object of the invention is to provide 'a fdevice oithis character having meansctor varying the leverage of the pull on the door,,-so that as the door is swung from a vertiealtoward a horizontal posit on the leverage" Treases"in'pmportion.' f:

tw ll-describe my invention in the iollowing specification and point out the novel.

'featuresthereot in appended claims;

In the accompanying drawings. Figure 1v is; a plan view of one embodiment of the invention. Fig.2 is a front elevation of the "same. Fig. 3 is an end elevation of the same.

Fig. 4 is. a front elevation of a modified form. Fig. 5 is a plan View and Fig. 6 is an end elevation of the arrangeinen'tshown in Fig; 4:. Fig. 'i, is a front elevationof another modified-form of the invention 'having a horizontal drum shaft, 15 igifld is, a plan view ,and Fig". 9 s an end elevation oi'the modification which is shown in Fig 7, Fig'fidis a front-eleva tionof still aiiother modified form having one counterweight. Fig. 11 1s a front elevation and Fig; 12 is an end elevation ot this j Fig. 13 is a detail vlew of modification. the differential winding drum and releasing mechanism for the counter weight of the upper door section.

Like characters of reference designate cor responding parts in all the figures.

in the embodiment/of the inventionillustrated in Figs. Lin and 3, 1 represents a door such asis need on pier sheds, and is composed of sections a and l) slidahle with respect to one another in a well known man-- ner, The upper door section a is mounted tin'horizontal hinges 2, 2 which are secured A chain or cable disattached at its ends to the door tachment oi' the hoisting cahle .sectionnear the lower edge of'the latter, and at its middle portion the chain is attac'hed to a movable pulley block. 6, which carries a grooved pulley or sheave'fijarranged to rest on a hoisting cable '10. The cable is attached at both ends toa differential winding or hoisting drum composed of two sections 12 and 13 mounted on a vertical winding shaft 1a. The drum sectionsl2. and 13 are mountcd'on the Winding shaft- 141- and connected to bevel gear-s15 and 17 respectively, which mesh withhevel pinions 19 and 21 pivotally mounted on the interior of a worm'wheel 26, thereby constituting a di' erential gearing. The hoisting cable 1Q extends from I the section 12 oi this differential winding or hoisting drum over a fixed horizontal sheave 16 located above and pehind the hinges 2, then passes forward over a vertical sheave 18 carried bye carriage 20, thence down under the sheave 8 1n the block 6 then up over a vertical sheave .22 alsoinounted on the carriage 20, then around a fired horizontal sheave Qtniounted above and 111 front of the extreme forward position assumed by the lower edge of the door when swung up into horizontal position, then back hoisting drunn p Y he carriage 20 is provided'fwith rollers 21 which travel along 'the flange of an -l-beam 23 extending forward from the end wall of the shed, and suspended from beams 25. This l-heam is shown in Figs. 2 and 3, but is omitted from'Fig. 1 for the sake of clearness.

to the section 13 of said The winding shaft lis operated by means of the worm wheel 26 on the difierential gearing meshing with a worm 28 on a horizontal shaft 30, the latter being providedwith achainwheel 32 over which passes the chain 34; which is in a convenient position to ,be grasped bythe operator. When the-chain is pulie dlto wind up the hoisting cable, the cable/is wonnd up at each end according Etc the friction on each section of the winding drunnto pull the carriage forward andraisc the door, said carriage automatically placing itself in a position vertically ahove the point of atto the dhor. are counterand 66, the proper size 'on and the The two sections o the door balanced by counterneights counterweight being; out? to counterbalance lowson terweight 44,-that is the proper size 'to counlever 36; -This out of action when only, the top section of the door is to be swung out. This occurs when it is desired to close the lower half of the doorway and open the upper half to admit light and air;

- The mechanism. for throwing off the counterbalance the lower door section consists of a lever pivotally mounted on the upper.

door section and connected to one end ofa cable 44 passing over sheaves 18'and l6 and pivotally connectedto one end of a latch the counterweight drum by a we1ght'52 to which it is connected by a cable 54 passing over a sheave 56. The arrangement'of the lug 4:0.with the latch lever 36 prevents the rotation of the drum 60 and renders the counterweight 64: inactive until the latch lever is moved out of the path of the lug and the drum released. The lockingof the drum 60'does not interfere with the raising and lowering of the upper door section, and the free rotation of the winding shaft 14 and the drum 62 because the drum 60 is arranged to be automatically uncoupled from the shaft 14:. The drum 60 is rotatable on thethread on the hub is such that when the arm 25has made one revolution it will have the winding shaft 14 and its hub is internally threaded to receive the correspondingly threadedhuh 23 of an arm 25 which is adapted to engage a lug 27 on the upper face of the winding drum 60. The'hub of this arm is slidable on a key 29 on the windingshaft, and when the lug 40 is in engagement with the end of the lever 36 the drum 60 is 'held against rotation. Therefore when the winding sheet is rotated the arm 25 moves away from the lug 27 The pitch of moved axially of the shaft a distance suiiicient to allow it to clear the end face of the lug 27. Further rotation of the shaft 14 in this direction moves'the arm farther away.

If only the upper door section is raised the counterweight for the lower door section is suspended by the drum 60 due to the fact that the lug 40 is in engagement with the end of the lever 36, :said drum rotating freely on the winding shaft 14 as above indicated. Rotation of the shaft let in the opposite direction brings the arm 25 back into engagement with the lug 27 to connect the I latch lever is held in the path of a hooked lug 40 on the periphery of counterweight to the winding shaft when the door sections are returned to their original lowered positions. d

When it is desired to raise both door sections, the lower section is-pushed up to engage the lever 50, which, through the cord.

14 pulls the end of the lever 36 out of the path of the lug-4O on the drum 60. This allows the drum 60 to revolve with the shaft 1-1 in the same manner as thedrum 62, drum -60 controlling the counterweight 64, which is for the lower door section, and drum 62 controlling .the counterweight 66, which is.

for the upper door section; thus both counterweights are in act-ion.

When it is desired to raiseonly the upper door section leaving the lower door section in place, the lever 50, not being interfered with remains ina position which allowsthe.

lever 36 to stay in engagement with the lug 40 of the drum 60. Now, if we attempt to operate the mechanism, the shaft 14: with the drum 62.. will revolve,,allowing the upper section to be counterbalanced by the counter v weight 66 throughits connection with the cable '72, whilethe lug {10 of the drum'60;

remains in enga ement with the lever 36 and Y thereby. suspen s .the counterweight 6 1 bf the lower door section, therebynullifying its counterbalancing effect, which is not needed because the lower section is not raised, the

drum 60 being,freed from driving relation with the arm 25, as described above.

The winding drums for the counterweights 64, 66 are proportioned to the winding drums for the hoisting cable-according to the amount of travel and head room in any particular instance. I

Nhen the door is closed it hangs in a vertical p'osition,'and the'carriage 20 is in ,its rearward positionnear the wall of the shed. In this form of the device, when the hand chain at is pulled to rotate the worm shaft, the cable 10 is wound up. Only a slight amount of horizontal forceis necessary to start the door to swing upwardly,

but the nearer it approaches the horizontal position, the greater its leverage on the hinges and the greater the force necessary to raise it; As the door swings .open the carriage 2O automatically rolls away outwardly from the hinges so that the cable 10 always exerts its pull vertically and at a constantly increasing leverage on the door as it rises. By having thewinding drums 60 and 62 of greater c-liaaeter' than that of the winding drums 12 and 13, in the-present instance about two to one, the counterweights 64 and 66 travel downward 2 inches to-every inch of rise of, the pulley-block 6, it being understood that the drums 12 and 13 wind up both ends of the cable 10 at once according to the requirements.

In the modlficatien shown 1n Figs. 4, 5 and 6, the door 1 is composed of sections a and a worm 96 on a shaft 97'.

b hinged-at 2 and connected by i cable 4 to a block 2'6 similar to the manner shown in Fig. 2. An endless cable 72 sup orts a movable pulley 74 mounted in a b ock and passes over vertical sheaves 76 and 78 in a carriage 80, then around a horizontal idler 82 and a movable pulley 84, the latter being it'reev to move with the cable and provided with a hook 86 to which one end of a cable 88 is attached. The'cable 88 passes over a horizontal fixed idler 89, and its other end is connected to a winding drum 90 on a vertical winding shaft 92. The Winding drum Y is operated'by a worm wheel 94 on the windingshait, said worm wheel meshing with On another part of this shaft is a chain wheel98, operated by a chain j Mounted on the shaft 92 are a pair of winding or counterweight drums 102 and 103 of larger diameter than that of the winding' or hoisting drum. 90. The drum 102 is connected to one end of a cable 104:, .which passes over a vertical idler 105 and is connected at its other end to a counterweight 106. The drum 103 is connected to one end of a cable 107 which passes over a vertical idler 108 andis connected at its other end to a counterweight 109. .The relative diameters of the winding drums is such as will produce the desired movement of the counterweights with respect of the movement of the door in any'particular instance. With this modification a counterweight releasing mechanism is also provided modified in accordance with the difierence in the hoisting mechanism, but not shown in the drawings.

In the modification shown in Figs. 7, 8 and 9, the door is attached by a cable 110 to a block 112. A cable 113 is attached to .the block 112 and passes over a verticalidler 111- in a traveling carriage 124, thence around a fixed horizontal idler 115 to a winding or hoisting drum 116 on a hori, zontal winding shaft 117. I The winding shaft 117 is provided with a worm wheel 118 which meshes with a worm 119 on a shaft 120, said shaft being provided with a chain wheel 121- over which a chain 122 passes in a position to be grasped by'the operator. The carriage 121 is connected to one end of a cable 126-, which is connected. to a conical spiral winding drum128 onthe winding shaft 117. Theconical spiral drum is so shaped that the radiusat which the rope pulls at any moment is such as to move the carriage horizontally with a speed propor tional to the sins of the angle which the door makes with. the vertical. Apair of counterweights 136 and 132 are provided connected respectively to one end of the cables 13% and 136. The cable 13 ipasses over a vertical idler 136 thence over a horiaontal idler 1416', and connected at its other end to a winding drum 14-2 on the winding shaft 117. The cable 136 passes over a vertical idler 14 1, thence over a horizontal idler.

1 16- to a winding drum 148 on the shaft 117.

.adjacent to the largest section of the drum toallow the hoisting cable to pass onto small diameter as quickly as possible so as to give the slack iorunhoolnng the cable 110 without moving the carriage 124. toward the wall too rapidly while so doing.

The counterweight-132 is thrown out or action in this modification similarly to the' manner described above, but the mechanism is necessarily somewhat d'iil'erent to suit the present location of the various parts this portion of the mechanism being not shown in the drawings.

in the modification shown in Figs. 10, 11 and 12, the door is attached-by acable 150 to a pulley 152 supported the cable-15d. The cable 154 isconnected at one end to a carriage 158 andpasses under the pulley 152, then over the vertical idler 157 in the traveling carriage 158, the fixed horizontal driving sheave 161, the movable fixed idlcrs 163 and 160 back to the carriage 158. lhe movable pulley 162 is connected to one 'end of a cable 161-, which passes over a vertical idler 1'66 and is connected at its other end to a counterweight 168.; The drivin'g sheave ltil which may be a grip sheave oil wellknown form is mounted on a shaft 176, which is provided with a bevel gear 172 meshing with a bevel'gear 173 on ashaft 174. if desired a worm and worm wheel may be substituted for the bevel gears. The shaft 171 is provided with a chain wheel 176 operated by a chain 178. in this form of the device there is only one counterweight, which is connected to the movable pulley 162 on the hoisting cable. What i claim is:

1. The combination with a horizontally pivoted door, 01 a traveling carriage having a horizontal path of movement, a shaft, a diil'crential on said shait, pair of drums connected to said difierential, a cable having its ends secured to said drums, said cable being looped down through said carriage and secured to the door, the "arrangement being such that the operation oi? the diitl'erential automatically adjusts the position of the carriage as the door 15 raised and lowered. Y

2. The combination with a horizontally pivoted door, a cotuiterweight therefor, and

pulley 162, the

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its

Illlt") a counterweight cable connecting the two, of

a support above the door extending outwardly from the plane of the door opening,

a carr age movablymounted on the support,

means guided by the carriage connecting the door and the counterweight, means for driving the carriage to adjust its position on the support, and means dependent upon the raising and lowering of the door for actuating the driving means,

4. The combination with a horizontally pivoted door, of a traveling carriage having a horizontal path of movement at substan-.

tially right angles to the plane of the door opening, a counterweight for the door, a cable connected to the door near its lower edge, passing over the said carriage and connected to the counterweight at its opposite end, a relatively stationary horizontal shaft, means operatively connected thereto for raising and lowering the door, said carriage being operatively connected to said shaft whereby the position of the carriage is positively determined by'the position of the door. y

5. The combination with a horizontally pivoted door, of atraveling carriage having a horizontal path-of movement at substantially right angles to the plane of the door opening, a counterweight for the door, a cable connecting the lower edge of the door to the counterweight and passing over said,

' carriage, a relatively stationary horizontal shaft, means for operating the shaft to raise and lower the door, differential gears on the shaft and means dependent upon the differential gears for adjusting the position of the carriage whereby thecarria-ge is maintained substantially over the point of connection between the, cable and the door.

6. The combination with a horizontally u pivoted d0or, a rail above the door extending outwardly from the plane of the door opening, a carriage movable on the rail, guide pulleys mounted on the carriage, fixed pulleys beyond the limits of the carriage movement and near its respective ends, a pulley affixed to the door, a vertical shaft rotatably supported above the ,door opern ing at t-he'inner-end of the rail between the fixed pulleys, a winding drum secured to the shaft, a counterweight for the door, a cord attached to .the counterweight and secured 'toiand ada ted to be wound on the drum a pair of differentially connected drum sections mounted on the shaft and a cord secured at its ends to and wound on the respective drum sections and extending from one of said sections over one of said fixed pulleys thence over a guide pulley of the carriage, around the door pulley, over a second guide pulley of the carriage and over the other fixed pulley to the other drum section.

7. The combination with a horizontally pivoted door, a rail above the door extending outwardly from the, plane of the door opening, a carriage movable on the rail, guide pulleys mounted on the carriage, fixed pulleys beyond the limits ofthe carriage movement and near its respective ends, a.

pulley'affixed to the door, a vertical shaft pulleys, a winding drum secured to the shaft, a counterweight for the door, a cord attached to the counterweight and secured to and 'adapted to be-wound' on the drum, a pair of differentially connected drum sections mounted on the shaft and a cord secured at its .ends to and wound on the rerotatably supported above the door opening at the inner end of the rail between the fixed spective drum sections and extending from one of said drum'sections over one of said fixed pulleys thence .over a gulde pulley of the carriage around the door pulley, over a second guide pulley of the carriage and over the other fixed pulley to the other drum secticn, whereby the carriage is driven by the cord to occupy a position substantially above the door pulley as the door is raised and lowered. I

S. The combination with a horizontally pivoted door, a support above the door ex tending outwardly from the'plane of the door opening, a carriagemovable on the support, fixed cable guides near the respective ends of the support, other cable guides 1 on the carriage and on the door, a winding drum rota-tively mounted between the fixed cable guides, a counterweight for the door,

a cable attached to the counterweight and arranged to be wound on the drum, dilferen tially connected drum sections operatively connected to the first-named drum and a cable secured at its ends to and wound on the respective drum sections and extending from one of said drum-sections over one fixed cable guide, thence over a cable guide of the carriage, a cable guide on the-door, a

second cable guide on the carriage and the other fixed guide to the other drum section.

9. The combination with a horizontallypivoted door, a support above the door extending outwardly from the plane of the door opening, a carriage movable on "the support, fixed cable guides near the respective ends of the support, other cable guides on the carriage 'and'on the door, a winding drum rotatively mounted between the fixed eeble guides, t counterweight fer the dine at eeble etteehec't the eeuntemveight ent arranged te be "Wound: en the d'tmm, a cable coiipemting "with the severe guides Watt lileene esseeietect with stem drum te Whieh the units (it? the cebite we sectlreit for mute nmticefiy vejtying peeitien at the we riege, we the item? is miset met le'weeec'i,

it). The eembimttien with e hetfiizontefiy piveted. fleet" e ett net above the @100 me tending eut-Werdly them the plane at? he deter epeninge, e eett'iege met e-Me en the snppert fixed cable guides new 15 1e iteepetw tliVE ends the SEPPGEJ'M ether cable guictee (m the carriage and 0n the (100% it Winding; drum retaliated mounted. between the fizzec t carriage the [1001' is 1 ef-rengged wetmet en the dmum a eebte eo iipemting with the several guides end means eperetively ceinneetett te the meeting drum cemptieme" sections t0 which the e spective ends 0% the stable are secured to]? amtameticelty eitjustine: the position ef the t ed amt lowet'ect.

In testimeny whereof have Signet]. my name te this specification in the presence of twu subscribing Wit Witt ees:

{LIAM Jh Brent, .W {){JRAVEEL 

